How to cache LLM API calls in Node.js 2026: Redis and break-even math
Redis exact-match caching cuts LLM API spend at scale. Working Node.js middleware, 30-minute TTL trade-off, and when semantic search is worth the overhead.
Tag · caching
Redis exact-match caching cuts LLM API spend at scale. Working Node.js middleware, 30-minute TTL trade-off, and when semantic search is worth the overhead.
Semantic caching reduces LLM API spend by 20-70% in production. Here's how embedding-based, prompt-hash, and hybrid caching each break in practice.